./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0eb5f9-ccca-4a5c-866a-f3202aa60c80/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0eb5f9-ccca-4a5c-866a-f3202aa60c80/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0eb5f9-ccca-4a5c-866a-f3202aa60c80/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0eb5f9-ccca-4a5c-866a-f3202aa60c80/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0eb5f9-ccca-4a5c-866a-f3202aa60c80/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0eb5f9-ccca-4a5c-866a-f3202aa60c80/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:25:22,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:25:22,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:25:22,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:25:22,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:25:22,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:25:22,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:25:22,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:25:22,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:25:22,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:25:22,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:25:22,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:25:22,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:25:22,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:25:22,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:25:22,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:25:22,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:25:22,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:25:22,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:25:22,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:25:22,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:25:22,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:25:22,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:25:22,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:25:22,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:25:22,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:25:22,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:25:22,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:25:22,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:25:22,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:25:22,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:25:22,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:25:22,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:25:22,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:25:22,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:25:22,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:25:22,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:25:22,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:25:22,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:25:22,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:25:22,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:25:22,242 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0eb5f9-ccca-4a5c-866a-f3202aa60c80/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-19 08:25:22,284 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:25:22,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:25:22,285 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:25:22,285 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:25:22,286 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:25:22,286 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:25:22,286 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:25:22,286 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:25:22,287 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:25:22,287 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:25:22,287 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:25:22,287 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:25:22,288 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:25:22,288 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:25:22,288 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:25:22,288 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:25:22,289 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:25:22,289 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:25:22,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:25:22,290 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:25:22,290 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:25:22,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:25:22,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:25:22,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:25:22,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:25:22,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:25:22,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:25:22,294 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-19 08:25:22,294 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:25:22,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:25:22,294 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:25:22,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:25:22,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:25:22,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:25:22,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:25:22,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:25:22,296 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:25:22,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:25:22,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:25:22,297 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:25:22,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:25:22,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:25:22,298 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:25:22,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0eb5f9-ccca-4a5c-866a-f3202aa60c80/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0eb5f9-ccca-4a5c-866a-f3202aa60c80/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb [2022-11-19 08:25:22,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:25:22,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:25:22,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:25:22,668 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:25:22,669 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:25:22,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0eb5f9-ccca-4a5c-866a-f3202aa60c80/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i [2022-11-19 08:25:22,758 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0eb5f9-ccca-4a5c-866a-f3202aa60c80/bin/utaipan-I9t0OCRTmS/data/2c5ad2dfd/efc56e5a7e494c76b5136cc0e55c1423/FLAGf67ba5b36 [2022-11-19 08:25:23,335 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:25:23,336 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0eb5f9-ccca-4a5c-866a-f3202aa60c80/sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i [2022-11-19 08:25:23,353 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0eb5f9-ccca-4a5c-866a-f3202aa60c80/bin/utaipan-I9t0OCRTmS/data/2c5ad2dfd/efc56e5a7e494c76b5136cc0e55c1423/FLAGf67ba5b36 [2022-11-19 08:25:23,617 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0eb5f9-ccca-4a5c-866a-f3202aa60c80/bin/utaipan-I9t0OCRTmS/data/2c5ad2dfd/efc56e5a7e494c76b5136cc0e55c1423 [2022-11-19 08:25:23,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:25:23,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:25:23,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:25:23,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:25:23,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:25:23,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:25:23" (1/1) ... [2022-11-19 08:25:23,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5961740e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:23, skipping insertion in model container [2022-11-19 08:25:23,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:25:23" (1/1) ... [2022-11-19 08:25:23,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:25:23,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:25:24,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:25:24,398 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:25:24,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:25:24,545 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:25:24,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24 WrapperNode [2022-11-19 08:25:24,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:25:24,547 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:25:24,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:25:24,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:25:24,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:24,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:24,627 INFO L138 Inliner]: procedures = 369, calls = 37, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 207 [2022-11-19 08:25:24,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:25:24,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:25:24,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:25:24,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:25:24,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:24,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:24,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:24,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:24,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:24,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:24,667 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:24,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:24,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:25:24,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:25:24,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:25:24,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:25:24,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:24,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:25:24,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0eb5f9-ccca-4a5c-866a-f3202aa60c80/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:25:24,731 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0eb5f9-ccca-4a5c-866a-f3202aa60c80/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:25:24,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0eb5f9-ccca-4a5c-866a-f3202aa60c80/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:25:24,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:25:24,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:25:24,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:25:24,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:25:24,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:25:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-19 08:25:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:25:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:25:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:25:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-19 08:25:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-19 08:25:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:25:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:25:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:25:24,808 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 08:25:25,011 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:25:25,013 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:25:25,432 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:25:25,441 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:25:25,441 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:25:25,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:25:25 BoogieIcfgContainer [2022-11-19 08:25:25,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:25:25,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:25:25,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:25:25,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:25:25,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:25:23" (1/3) ... [2022-11-19 08:25:25,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662c6079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:25:25, skipping insertion in model container [2022-11-19 08:25:25,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (2/3) ... [2022-11-19 08:25:25,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662c6079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:25:25, skipping insertion in model container [2022-11-19 08:25:25,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:25:25" (3/3) ... [2022-11-19 08:25:25,454 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_05-ptra_rc.i [2022-11-19 08:25:25,462 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 08:25:25,473 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:25:25,473 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-19 08:25:25,473 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:25:25,596 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 08:25:25,631 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:25:25,643 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 249 places, 245 transitions, 495 flow [2022-11-19 08:25:25,646 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 249 places, 245 transitions, 495 flow [2022-11-19 08:25:25,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 249 places, 245 transitions, 495 flow [2022-11-19 08:25:25,865 INFO L130 PetriNetUnfolder]: 0/244 cut-off events. [2022-11-19 08:25:25,865 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 08:25:25,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 244 events. 0/244 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 92 event pairs, 0 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-19 08:25:25,874 INFO L119 LiptonReduction]: Number of co-enabled transitions 4760 [2022-11-19 08:26:22,784 WARN L233 SmtUtils]: Spent 13.63s on a formula simplification. DAG size of input: 162 DAG size of output: 155 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:26:32,525 WARN L233 SmtUtils]: Spent 9.73s on a formula simplification that was a NOOP. DAG size: 147 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:26:44,936 WARN L233 SmtUtils]: Spent 12.41s on a formula simplification. DAG size of input: 162 DAG size of output: 155 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:26:53,640 WARN L233 SmtUtils]: Spent 8.70s on a formula simplification that was a NOOP. DAG size: 147 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:27:29,618 WARN L233 SmtUtils]: Spent 31.22s on a formula simplification that was a NOOP. DAG size: 224 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:27:43,247 WARN L233 SmtUtils]: Spent 13.62s on a formula simplification that was a NOOP. DAG size: 189 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:28:07,745 WARN L233 SmtUtils]: Spent 24.50s on a formula simplification that was a NOOP. DAG size: 224 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:28:16,507 WARN L233 SmtUtils]: Spent 8.76s on a formula simplification that was a NOOP. DAG size: 189 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:29:31,788 WARN L233 SmtUtils]: Spent 1.25m on a formula simplification that was a NOOP. DAG size: 335 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:30:10,177 WARN L233 SmtUtils]: Spent 38.38s on a formula simplification that was a NOOP. DAG size: 305 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:31:20,311 WARN L233 SmtUtils]: Spent 1.17m on a formula simplification that was a NOOP. DAG size: 335 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:32:11,470 WARN L233 SmtUtils]: Spent 51.15s on a formula simplification that was a NOOP. DAG size: 305 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:32:11,765 INFO L134 LiptonReduction]: Checked pairs total: 61094 [2022-11-19 08:32:11,766 INFO L136 LiptonReduction]: Total number of compositions: 272 [2022-11-19 08:32:11,782 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 72 transitions, 149 flow [2022-11-19 08:32:11,849 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 768 states, 725 states have (on average 2.017931034482759) internal successors, (1463), 767 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:11,867 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:32:11,872 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@62f2c010, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:32:11,872 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-11-19 08:32:11,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 768 states, 725 states have (on average 2.017931034482759) internal successors, (1463), 767 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:11,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 08:32:11,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:11,881 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 08:32:11,882 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:32:11,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:11,887 INFO L85 PathProgramCache]: Analyzing trace with hash 840, now seen corresponding path program 1 times [2022-11-19 08:32:11,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:11,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802585022] [2022-11-19 08:32:11,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:11,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:12,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:32:12,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:12,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802585022] [2022-11-19 08:32:12,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802585022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:12,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:12,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 08:32:12,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140795809] [2022-11-19 08:32:12,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:12,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:32:12,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:12,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:32:12,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:32:12,065 INFO L87 Difference]: Start difference. First operand has 768 states, 725 states have (on average 2.017931034482759) internal successors, (1463), 767 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:12,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:12,439 INFO L93 Difference]: Finished difference Result 680 states and 1302 transitions. [2022-11-19 08:32:12,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:32:12,441 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-19 08:32:12,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:12,456 INFO L225 Difference]: With dead ends: 680 [2022-11-19 08:32:12,456 INFO L226 Difference]: Without dead ends: 680 [2022-11-19 08:32:12,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:32:12,460 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:12,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:32:12,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2022-11-19 08:32:12,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 680. [2022-11-19 08:32:12,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 663 states have (on average 1.9638009049773755) internal successors, (1302), 679 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:12,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 1302 transitions. [2022-11-19 08:32:12,553 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 1302 transitions. Word has length 1 [2022-11-19 08:32:12,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:12,553 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 1302 transitions. [2022-11-19 08:32:12,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:12,554 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 1302 transitions. [2022-11-19 08:32:12,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:32:12,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:12,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:12,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:32:12,555 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:32:12,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:12,556 INFO L85 PathProgramCache]: Analyzing trace with hash 808546313, now seen corresponding path program 1 times [2022-11-19 08:32:12,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:12,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732944275] [2022-11-19 08:32:12,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:12,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:13,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:32:13,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:13,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732944275] [2022-11-19 08:32:13,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732944275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:13,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:13,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:32:13,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852268325] [2022-11-19 08:32:13,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:13,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:32:13,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:13,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:32:13,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:32:13,516 INFO L87 Difference]: Start difference. First operand 680 states and 1302 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:14,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:14,729 INFO L93 Difference]: Finished difference Result 737 states and 1412 transitions. [2022-11-19 08:32:14,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:32:14,730 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 08:32:14,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:14,734 INFO L225 Difference]: With dead ends: 737 [2022-11-19 08:32:14,734 INFO L226 Difference]: Without dead ends: 737 [2022-11-19 08:32:14,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:32:14,735 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 36 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:14,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 40 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-19 08:32:14,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2022-11-19 08:32:14,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 737. [2022-11-19 08:32:14,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 720 states have (on average 1.961111111111111) internal successors, (1412), 736 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:14,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1412 transitions. [2022-11-19 08:32:14,758 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1412 transitions. Word has length 9 [2022-11-19 08:32:14,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:14,759 INFO L495 AbstractCegarLoop]: Abstraction has 737 states and 1412 transitions. [2022-11-19 08:32:14,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:14,759 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1412 transitions. [2022-11-19 08:32:14,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:32:14,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:14,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:14,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:32:14,760 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:32:14,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:14,761 INFO L85 PathProgramCache]: Analyzing trace with hash 268314491, now seen corresponding path program 1 times [2022-11-19 08:32:14,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:14,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113045071] [2022-11-19 08:32:14,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:14,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:15,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:32:15,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:15,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113045071] [2022-11-19 08:32:15,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113045071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:15,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:15,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:32:15,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144349559] [2022-11-19 08:32:15,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:15,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:32:15,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:15,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:32:15,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:32:15,254 INFO L87 Difference]: Start difference. First operand 737 states and 1412 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:16,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:16,474 INFO L93 Difference]: Finished difference Result 1270 states and 2420 transitions. [2022-11-19 08:32:16,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:32:16,475 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 08:32:16,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:16,481 INFO L225 Difference]: With dead ends: 1270 [2022-11-19 08:32:16,481 INFO L226 Difference]: Without dead ends: 1270 [2022-11-19 08:32:16,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:32:16,483 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 105 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:16,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 27 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-19 08:32:16,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2022-11-19 08:32:16,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 842. [2022-11-19 08:32:16,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 828 states have (on average 1.958937198067633) internal successors, (1622), 841 states have internal predecessors, (1622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:16,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1622 transitions. [2022-11-19 08:32:16,511 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1622 transitions. Word has length 9 [2022-11-19 08:32:16,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:16,511 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1622 transitions. [2022-11-19 08:32:16,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:16,512 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1622 transitions. [2022-11-19 08:32:16,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:32:16,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:16,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:16,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:32:16,513 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:32:16,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:16,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1095713088, now seen corresponding path program 1 times [2022-11-19 08:32:16,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:16,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290646244] [2022-11-19 08:32:16,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:16,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:17,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:32:17,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:17,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290646244] [2022-11-19 08:32:17,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290646244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:17,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:17,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:32:17,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190579650] [2022-11-19 08:32:17,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:17,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:32:17,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:17,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:32:17,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:32:17,244 INFO L87 Difference]: Start difference. First operand 842 states and 1622 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:18,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:18,965 INFO L93 Difference]: Finished difference Result 844 states and 1626 transitions. [2022-11-19 08:32:18,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:32:18,970 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:32:18,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:18,974 INFO L225 Difference]: With dead ends: 844 [2022-11-19 08:32:18,974 INFO L226 Difference]: Without dead ends: 844 [2022-11-19 08:32:18,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-11-19 08:32:18,975 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 151 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:18,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 38 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-19 08:32:18,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2022-11-19 08:32:18,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 841. [2022-11-19 08:32:18,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 827 states have (on average 1.958887545344619) internal successors, (1620), 840 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:18,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1620 transitions. [2022-11-19 08:32:18,997 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1620 transitions. Word has length 12 [2022-11-19 08:32:18,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:18,997 INFO L495 AbstractCegarLoop]: Abstraction has 841 states and 1620 transitions. [2022-11-19 08:32:18,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:18,998 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1620 transitions. [2022-11-19 08:32:18,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:32:18,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:18,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:18,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:32:18,999 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:32:19,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:19,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1136824668, now seen corresponding path program 2 times [2022-11-19 08:32:19,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:19,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373432458] [2022-11-19 08:32:19,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:19,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:19,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:32:19,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:19,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373432458] [2022-11-19 08:32:19,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373432458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:19,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:19,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:32:19,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629135610] [2022-11-19 08:32:19,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:19,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:32:19,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:19,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:32:19,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:32:19,773 INFO L87 Difference]: Start difference. First operand 841 states and 1620 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:21,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:21,981 INFO L93 Difference]: Finished difference Result 830 states and 1598 transitions. [2022-11-19 08:32:21,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:32:21,982 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:32:21,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:21,986 INFO L225 Difference]: With dead ends: 830 [2022-11-19 08:32:21,986 INFO L226 Difference]: Without dead ends: 830 [2022-11-19 08:32:21,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2022-11-19 08:32:21,987 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 157 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:21,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 41 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-19 08:32:21,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2022-11-19 08:32:22,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 804. [2022-11-19 08:32:22,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 791 states have (on average 1.95448798988622) internal successors, (1546), 803 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:22,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1546 transitions. [2022-11-19 08:32:22,007 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1546 transitions. Word has length 12 [2022-11-19 08:32:22,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:22,007 INFO L495 AbstractCegarLoop]: Abstraction has 804 states and 1546 transitions. [2022-11-19 08:32:22,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:22,008 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1546 transitions. [2022-11-19 08:32:22,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:32:22,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:22,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:22,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:32:22,009 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:32:22,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:22,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1675638946, now seen corresponding path program 1 times [2022-11-19 08:32:22,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:22,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799630075] [2022-11-19 08:32:22,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:22,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:22,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:32:22,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:22,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799630075] [2022-11-19 08:32:22,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799630075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:22,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:22,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:32:22,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380247027] [2022-11-19 08:32:22,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:22,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:32:22,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:22,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:32:22,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:32:22,650 INFO L87 Difference]: Start difference. First operand 804 states and 1546 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:25,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:25,232 INFO L93 Difference]: Finished difference Result 1227 states and 2334 transitions. [2022-11-19 08:32:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 08:32:25,233 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:32:25,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:25,238 INFO L225 Difference]: With dead ends: 1227 [2022-11-19 08:32:25,238 INFO L226 Difference]: Without dead ends: 1227 [2022-11-19 08:32:25,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:32:25,239 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 215 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:25,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 17 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 08:32:25,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2022-11-19 08:32:25,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 803. [2022-11-19 08:32:25,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 790 states have (on average 1.9544303797468354) internal successors, (1544), 802 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:25,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1544 transitions. [2022-11-19 08:32:25,262 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1544 transitions. Word has length 12 [2022-11-19 08:32:25,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:25,263 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1544 transitions. [2022-11-19 08:32:25,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:25,263 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1544 transitions. [2022-11-19 08:32:25,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:32:25,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:25,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:25,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:32:25,265 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:32:25,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:25,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1887452956, now seen corresponding path program 2 times [2022-11-19 08:32:25,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:25,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107820436] [2022-11-19 08:32:25,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:25,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:25,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:32:25,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:26,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107820436] [2022-11-19 08:32:26,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107820436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:26,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:26,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:32:26,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022102285] [2022-11-19 08:32:26,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:26,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:32:26,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:26,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:32:26,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:32:26,001 INFO L87 Difference]: Start difference. First operand 803 states and 1544 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:28,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:28,358 INFO L93 Difference]: Finished difference Result 1241 states and 2362 transitions. [2022-11-19 08:32:28,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 08:32:28,359 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:32:28,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:28,364 INFO L225 Difference]: With dead ends: 1241 [2022-11-19 08:32:28,364 INFO L226 Difference]: Without dead ends: 1241 [2022-11-19 08:32:28,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-19 08:32:28,365 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 259 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:28,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 15 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-19 08:32:28,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2022-11-19 08:32:28,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 807. [2022-11-19 08:32:28,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 794 states have (on average 1.9546599496221662) internal successors, (1552), 806 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1552 transitions. [2022-11-19 08:32:28,415 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1552 transitions. Word has length 12 [2022-11-19 08:32:28,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:28,415 INFO L495 AbstractCegarLoop]: Abstraction has 807 states and 1552 transitions. [2022-11-19 08:32:28,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:28,416 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1552 transitions. [2022-11-19 08:32:28,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:32:28,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:28,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:28,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:32:28,417 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:32:28,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:28,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1898547856, now seen corresponding path program 3 times [2022-11-19 08:32:28,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:28,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670937868] [2022-11-19 08:32:28,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:28,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:29,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:32:29,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:29,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670937868] [2022-11-19 08:32:29,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670937868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:29,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:29,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:32:29,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501050237] [2022-11-19 08:32:29,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:29,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:32:29,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:29,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:32:29,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:32:29,406 INFO L87 Difference]: Start difference. First operand 807 states and 1552 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:31,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:31,789 INFO L93 Difference]: Finished difference Result 1227 states and 2335 transitions. [2022-11-19 08:32:31,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 08:32:31,789 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:32:31,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:31,798 INFO L225 Difference]: With dead ends: 1227 [2022-11-19 08:32:31,798 INFO L226 Difference]: Without dead ends: 1227 [2022-11-19 08:32:31,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-19 08:32:31,800 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 236 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:31,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 17 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-19 08:32:31,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2022-11-19 08:32:31,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 811. [2022-11-19 08:32:31,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 798 states have (on average 1.9548872180451127) internal successors, (1560), 810 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:31,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1560 transitions. [2022-11-19 08:32:31,846 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1560 transitions. Word has length 12 [2022-11-19 08:32:31,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:31,847 INFO L495 AbstractCegarLoop]: Abstraction has 811 states and 1560 transitions. [2022-11-19 08:32:31,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:31,847 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1560 transitions. [2022-11-19 08:32:31,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:32:31,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:31,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:31,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:32:31,850 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:32:31,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:31,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1249353096, now seen corresponding path program 4 times [2022-11-19 08:32:31,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:31,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202252680] [2022-11-19 08:32:31,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:31,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:31,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:32,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:32:32,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:32,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202252680] [2022-11-19 08:32:32,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202252680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:32,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:32,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:32:32,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621431839] [2022-11-19 08:32:32,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:32,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:32:32,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:32,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:32:32,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:32:32,592 INFO L87 Difference]: Start difference. First operand 811 states and 1560 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:35,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:35,277 INFO L93 Difference]: Finished difference Result 1565 states and 2985 transitions. [2022-11-19 08:32:35,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:32:35,277 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:32:35,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:35,283 INFO L225 Difference]: With dead ends: 1565 [2022-11-19 08:32:35,283 INFO L226 Difference]: Without dead ends: 1565 [2022-11-19 08:32:35,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2022-11-19 08:32:35,284 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 218 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:35,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 38 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 08:32:35,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2022-11-19 08:32:35,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 843. [2022-11-19 08:32:35,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 830 states have (on average 1.9566265060240964) internal successors, (1624), 842 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:35,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1624 transitions. [2022-11-19 08:32:35,310 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1624 transitions. Word has length 12 [2022-11-19 08:32:35,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:35,311 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 1624 transitions. [2022-11-19 08:32:35,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:35,311 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1624 transitions. [2022-11-19 08:32:35,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 08:32:35,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:35,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:35,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 08:32:35,312 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:32:35,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:35,313 INFO L85 PathProgramCache]: Analyzing trace with hash -496084896, now seen corresponding path program 1 times [2022-11-19 08:32:35,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:35,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695355071] [2022-11-19 08:32:35,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:35,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:36,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:32:36,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:36,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695355071] [2022-11-19 08:32:36,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695355071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:36,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:36,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:32:36,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513658579] [2022-11-19 08:32:36,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:36,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:32:36,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:36,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:32:36,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:32:36,011 INFO L87 Difference]: Start difference. First operand 843 states and 1624 transitions. Second operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:38,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:38,236 INFO L93 Difference]: Finished difference Result 1212 states and 2311 transitions. [2022-11-19 08:32:38,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 08:32:38,236 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-19 08:32:38,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:38,241 INFO L225 Difference]: With dead ends: 1212 [2022-11-19 08:32:38,242 INFO L226 Difference]: Without dead ends: 1212 [2022-11-19 08:32:38,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-19 08:32:38,243 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 225 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:38,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 18 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-19 08:32:38,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2022-11-19 08:32:38,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 818. [2022-11-19 08:32:38,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 805 states have (on average 1.95527950310559) internal successors, (1574), 817 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:38,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1574 transitions. [2022-11-19 08:32:38,266 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1574 transitions. Word has length 13 [2022-11-19 08:32:38,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:38,266 INFO L495 AbstractCegarLoop]: Abstraction has 818 states and 1574 transitions. [2022-11-19 08:32:38,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:38,266 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1574 transitions. [2022-11-19 08:32:38,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 08:32:38,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:38,267 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:38,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 08:32:38,268 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:32:38,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:38,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1063095496, now seen corresponding path program 1 times [2022-11-19 08:32:38,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:38,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428256184] [2022-11-19 08:32:38,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:38,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:38,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:32:38,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:38,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428256184] [2022-11-19 08:32:38,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428256184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:38,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:38,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:32:38,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461147252] [2022-11-19 08:32:38,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:38,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:32:38,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:38,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:32:38,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:32:38,657 INFO L87 Difference]: Start difference. First operand 818 states and 1574 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:39,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:39,986 INFO L93 Difference]: Finished difference Result 887 states and 1708 transitions. [2022-11-19 08:32:39,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:32:39,987 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-19 08:32:39,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:39,990 INFO L225 Difference]: With dead ends: 887 [2022-11-19 08:32:39,990 INFO L226 Difference]: Without dead ends: 887 [2022-11-19 08:32:39,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:32:39,991 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 36 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:39,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 38 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-19 08:32:39,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2022-11-19 08:32:40,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 887. [2022-11-19 08:32:40,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 874 states have (on average 1.954233409610984) internal successors, (1708), 886 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:40,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1708 transitions. [2022-11-19 08:32:40,011 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1708 transitions. Word has length 15 [2022-11-19 08:32:40,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:40,012 INFO L495 AbstractCegarLoop]: Abstraction has 887 states and 1708 transitions. [2022-11-19 08:32:40,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:40,012 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1708 transitions. [2022-11-19 08:32:40,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 08:32:40,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:40,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:40,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 08:32:40,013 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:32:40,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:40,014 INFO L85 PathProgramCache]: Analyzing trace with hash -657929368, now seen corresponding path program 1 times [2022-11-19 08:32:40,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:40,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205064242] [2022-11-19 08:32:40,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:40,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:40,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:32:40,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:40,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205064242] [2022-11-19 08:32:40,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205064242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:40,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:40,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:32:40,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369699808] [2022-11-19 08:32:40,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:40,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:32:40,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:40,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:32:40,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:32:40,384 INFO L87 Difference]: Start difference. First operand 887 states and 1708 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:41,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:41,371 INFO L93 Difference]: Finished difference Result 1132 states and 2151 transitions. [2022-11-19 08:32:41,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:32:41,372 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-19 08:32:41,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:41,376 INFO L225 Difference]: With dead ends: 1132 [2022-11-19 08:32:41,376 INFO L226 Difference]: Without dead ends: 1106 [2022-11-19 08:32:41,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:32:41,377 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 76 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:41,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 31 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 08:32:41,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-11-19 08:32:41,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 992. [2022-11-19 08:32:41,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 979 states have (on average 1.9530132788559755) internal successors, (1912), 991 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:41,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1912 transitions. [2022-11-19 08:32:41,402 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1912 transitions. Word has length 15 [2022-11-19 08:32:41,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:41,403 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 1912 transitions. [2022-11-19 08:32:41,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:41,403 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1912 transitions. [2022-11-19 08:32:41,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:32:41,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:41,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:41,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 08:32:41,405 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:32:41,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:41,405 INFO L85 PathProgramCache]: Analyzing trace with hash 913733976, now seen corresponding path program 1 times [2022-11-19 08:32:41,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:41,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643955205] [2022-11-19 08:32:41,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:41,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:42,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:32:42,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:42,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643955205] [2022-11-19 08:32:42,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643955205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:42,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:42,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 08:32:42,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381048547] [2022-11-19 08:32:42,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:42,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 08:32:42,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:42,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 08:32:42,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:32:42,400 INFO L87 Difference]: Start difference. First operand 992 states and 1912 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:45,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:45,813 INFO L93 Difference]: Finished difference Result 1405 states and 2705 transitions. [2022-11-19 08:32:45,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-19 08:32:45,815 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:32:45,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:45,821 INFO L225 Difference]: With dead ends: 1405 [2022-11-19 08:32:45,821 INFO L226 Difference]: Without dead ends: 1405 [2022-11-19 08:32:45,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=205, Invalid=497, Unknown=0, NotChecked=0, Total=702 [2022-11-19 08:32:45,822 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 154 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:45,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 81 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-19 08:32:45,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2022-11-19 08:32:45,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1045. [2022-11-19 08:32:45,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 1032 states have (on average 1.9554263565891472) internal successors, (2018), 1044 states have internal predecessors, (2018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:45,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 2018 transitions. [2022-11-19 08:32:45,851 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 2018 transitions. Word has length 18 [2022-11-19 08:32:45,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:45,851 INFO L495 AbstractCegarLoop]: Abstraction has 1045 states and 2018 transitions. [2022-11-19 08:32:45,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:45,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 2018 transitions. [2022-11-19 08:32:45,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:32:45,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:45,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:45,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 08:32:45,853 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:32:45,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:45,854 INFO L85 PathProgramCache]: Analyzing trace with hash -914817069, now seen corresponding path program 1 times [2022-11-19 08:32:45,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:45,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145988750] [2022-11-19 08:32:45,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:45,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:46,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:32:46,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:46,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145988750] [2022-11-19 08:32:46,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145988750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:46,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:46,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:32:46,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300180605] [2022-11-19 08:32:46,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:46,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:32:46,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:46,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:32:46,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:32:46,490 INFO L87 Difference]: Start difference. First operand 1045 states and 2018 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:49,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:49,252 INFO L93 Difference]: Finished difference Result 1352 states and 2564 transitions. [2022-11-19 08:32:49,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:32:49,253 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:32:49,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:49,257 INFO L225 Difference]: With dead ends: 1352 [2022-11-19 08:32:49,257 INFO L226 Difference]: Without dead ends: 1352 [2022-11-19 08:32:49,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-19 08:32:49,257 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 211 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:49,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 34 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-19 08:32:49,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2022-11-19 08:32:49,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 938. [2022-11-19 08:32:49,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 926 states have (on average 1.951403887688985) internal successors, (1807), 937 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:49,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1807 transitions. [2022-11-19 08:32:49,283 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1807 transitions. Word has length 18 [2022-11-19 08:32:49,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:49,284 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 1807 transitions. [2022-11-19 08:32:49,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:49,284 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1807 transitions. [2022-11-19 08:32:49,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:32:49,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:49,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:49,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 08:32:49,285 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:32:49,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:49,286 INFO L85 PathProgramCache]: Analyzing trace with hash -398652239, now seen corresponding path program 1 times [2022-11-19 08:32:49,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:49,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357617178] [2022-11-19 08:32:49,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:49,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:49,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:32:49,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:49,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357617178] [2022-11-19 08:32:49,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357617178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:49,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:49,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:32:49,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778000928] [2022-11-19 08:32:49,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:49,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:32:49,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:49,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:32:49,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:32:49,830 INFO L87 Difference]: Start difference. First operand 938 states and 1807 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:51,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:51,651 INFO L93 Difference]: Finished difference Result 964 states and 1826 transitions. [2022-11-19 08:32:51,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-19 08:32:51,652 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:32:51,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:51,655 INFO L225 Difference]: With dead ends: 964 [2022-11-19 08:32:51,655 INFO L226 Difference]: Without dead ends: 964 [2022-11-19 08:32:51,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2022-11-19 08:32:51,656 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 166 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:51,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 42 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-19 08:32:51,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2022-11-19 08:32:51,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 908. [2022-11-19 08:32:51,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 896 states have (on average 1.9497767857142858) internal successors, (1747), 907 states have internal predecessors, (1747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:51,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1747 transitions. [2022-11-19 08:32:51,678 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1747 transitions. Word has length 18 [2022-11-19 08:32:51,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:51,679 INFO L495 AbstractCegarLoop]: Abstraction has 908 states and 1747 transitions. [2022-11-19 08:32:51,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:51,679 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1747 transitions. [2022-11-19 08:32:51,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:32:51,680 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:51,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:51,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 08:32:51,680 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:32:51,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:51,681 INFO L85 PathProgramCache]: Analyzing trace with hash -275624300, now seen corresponding path program 2 times [2022-11-19 08:32:51,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:51,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023962952] [2022-11-19 08:32:51,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:51,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:52,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:32:52,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:52,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023962952] [2022-11-19 08:32:52,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023962952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:52,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:52,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:32:52,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062692418] [2022-11-19 08:32:52,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:52,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:32:52,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:52,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:32:52,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:32:52,787 INFO L87 Difference]: Start difference. First operand 908 states and 1747 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:54,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:54,993 INFO L93 Difference]: Finished difference Result 1558 states and 3004 transitions. [2022-11-19 08:32:54,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-19 08:32:54,994 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:32:54,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:54,999 INFO L225 Difference]: With dead ends: 1558 [2022-11-19 08:32:55,000 INFO L226 Difference]: Without dead ends: 1558 [2022-11-19 08:32:55,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=235, Invalid=635, Unknown=0, NotChecked=0, Total=870 [2022-11-19 08:32:55,001 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 229 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:55,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 104 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-19 08:32:55,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2022-11-19 08:32:55,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 918. [2022-11-19 08:32:55,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 906 states have (on average 1.9503311258278146) internal successors, (1767), 917 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:55,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1767 transitions. [2022-11-19 08:32:55,029 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1767 transitions. Word has length 18 [2022-11-19 08:32:55,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:55,029 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1767 transitions. [2022-11-19 08:32:55,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:55,029 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1767 transitions. [2022-11-19 08:32:55,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:32:55,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:55,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:55,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-19 08:32:55,031 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:32:55,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:55,032 INFO L85 PathProgramCache]: Analyzing trace with hash 2073214498, now seen corresponding path program 3 times [2022-11-19 08:32:55,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:55,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192592991] [2022-11-19 08:32:55,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:55,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:56,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:32:56,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:56,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192592991] [2022-11-19 08:32:56,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192592991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:56,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:56,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:32:56,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737996404] [2022-11-19 08:32:56,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:56,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:32:56,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:56,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:32:56,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:32:56,191 INFO L87 Difference]: Start difference. First operand 918 states and 1767 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:59,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:59,916 INFO L93 Difference]: Finished difference Result 1991 states and 3821 transitions. [2022-11-19 08:32:59,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-19 08:32:59,916 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:32:59,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:59,924 INFO L225 Difference]: With dead ends: 1991 [2022-11-19 08:32:59,924 INFO L226 Difference]: Without dead ends: 1991 [2022-11-19 08:32:59,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=299, Invalid=693, Unknown=0, NotChecked=0, Total=992 [2022-11-19 08:32:59,925 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 312 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:59,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 124 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-19 08:32:59,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2022-11-19 08:32:59,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 931. [2022-11-19 08:32:59,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 919 states have (on average 1.9510337323177367) internal successors, (1793), 930 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:59,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1793 transitions. [2022-11-19 08:32:59,955 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1793 transitions. Word has length 18 [2022-11-19 08:32:59,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:59,955 INFO L495 AbstractCegarLoop]: Abstraction has 931 states and 1793 transitions. [2022-11-19 08:32:59,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:32:59,956 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1793 transitions. [2022-11-19 08:32:59,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:32:59,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:59,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:59,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-19 08:32:59,957 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:32:59,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:59,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1272209449, now seen corresponding path program 1 times [2022-11-19 08:32:59,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:59,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938959410] [2022-11-19 08:32:59,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:59,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:01,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:01,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:01,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938959410] [2022-11-19 08:33:01,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938959410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:01,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:01,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:33:01,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115299370] [2022-11-19 08:33:01,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:01,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:33:01,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:01,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:33:01,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:33:01,362 INFO L87 Difference]: Start difference. First operand 931 states and 1793 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:04,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:04,500 INFO L93 Difference]: Finished difference Result 2129 states and 4020 transitions. [2022-11-19 08:33:04,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-19 08:33:04,500 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:33:04,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:04,507 INFO L225 Difference]: With dead ends: 2129 [2022-11-19 08:33:04,507 INFO L226 Difference]: Without dead ends: 2129 [2022-11-19 08:33:04,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2022-11-19 08:33:04,508 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 358 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 1362 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:04,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 94 Invalid, 1470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1362 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-19 08:33:04,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2129 states. [2022-11-19 08:33:04,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2129 to 992. [2022-11-19 08:33:04,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 980 states have (on average 1.9540816326530612) internal successors, (1915), 991 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:04,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1915 transitions. [2022-11-19 08:33:04,539 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1915 transitions. Word has length 18 [2022-11-19 08:33:04,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:04,539 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 1915 transitions. [2022-11-19 08:33:04,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:04,539 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1915 transitions. [2022-11-19 08:33:04,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:33:04,540 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:04,540 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:04,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-19 08:33:04,541 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:33:04,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:04,541 INFO L85 PathProgramCache]: Analyzing trace with hash 330506296, now seen corresponding path program 4 times [2022-11-19 08:33:04,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:04,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228522523] [2022-11-19 08:33:04,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:04,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:05,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:05,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:05,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228522523] [2022-11-19 08:33:05,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228522523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:05,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:05,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:33:05,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812215351] [2022-11-19 08:33:05,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:05,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:33:05,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:05,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:33:05,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:33:05,454 INFO L87 Difference]: Start difference. First operand 992 states and 1915 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:09,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:09,319 INFO L93 Difference]: Finished difference Result 1829 states and 3569 transitions. [2022-11-19 08:33:09,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-19 08:33:09,319 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:33:09,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:09,324 INFO L225 Difference]: With dead ends: 1829 [2022-11-19 08:33:09,324 INFO L226 Difference]: Without dead ends: 1829 [2022-11-19 08:33:09,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=873, Unknown=0, NotChecked=0, Total=1122 [2022-11-19 08:33:09,325 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 204 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 1793 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 1849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:09,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 189 Invalid, 1849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1793 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-19 08:33:09,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2022-11-19 08:33:09,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1025. [2022-11-19 08:33:09,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1013 states have (on average 1.9555774925962488) internal successors, (1981), 1024 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:09,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1981 transitions. [2022-11-19 08:33:09,353 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1981 transitions. Word has length 18 [2022-11-19 08:33:09,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:09,353 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1981 transitions. [2022-11-19 08:33:09,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:09,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1981 transitions. [2022-11-19 08:33:09,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:33:09,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:09,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:09,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-19 08:33:09,355 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:33:09,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:09,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1615622202, now seen corresponding path program 5 times [2022-11-19 08:33:09,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:09,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225883469] [2022-11-19 08:33:09,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:09,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:10,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:10,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:10,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225883469] [2022-11-19 08:33:10,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225883469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:10,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:10,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 08:33:10,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467743311] [2022-11-19 08:33:10,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:10,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 08:33:10,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:10,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 08:33:10,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:33:10,291 INFO L87 Difference]: Start difference. First operand 1025 states and 1981 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:13,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:13,623 INFO L93 Difference]: Finished difference Result 2100 states and 4054 transitions. [2022-11-19 08:33:13,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-19 08:33:13,623 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:33:13,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:13,628 INFO L225 Difference]: With dead ends: 2100 [2022-11-19 08:33:13,628 INFO L226 Difference]: Without dead ends: 2100 [2022-11-19 08:33:13,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=506, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:33:13,629 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 187 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 1836 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:13,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 298 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1836 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-19 08:33:13,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2022-11-19 08:33:13,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1038. [2022-11-19 08:33:13,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 1026 states have (on average 1.956140350877193) internal successors, (2007), 1037 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:13,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 2007 transitions. [2022-11-19 08:33:13,657 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 2007 transitions. Word has length 18 [2022-11-19 08:33:13,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:13,658 INFO L495 AbstractCegarLoop]: Abstraction has 1038 states and 2007 transitions. [2022-11-19 08:33:13,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:13,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 2007 transitions. [2022-11-19 08:33:13,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:33:13,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:13,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:13,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-19 08:33:13,659 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:33:13,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:13,660 INFO L85 PathProgramCache]: Analyzing trace with hash -666078853, now seen corresponding path program 2 times [2022-11-19 08:33:13,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:13,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412147473] [2022-11-19 08:33:13,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:13,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:14,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:14,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:14,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412147473] [2022-11-19 08:33:14,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412147473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:14,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:14,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:33:14,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610007523] [2022-11-19 08:33:14,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:14,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:33:14,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:14,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:33:14,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:33:14,554 INFO L87 Difference]: Start difference. First operand 1038 states and 2007 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:17,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:17,817 INFO L93 Difference]: Finished difference Result 1920 states and 3656 transitions. [2022-11-19 08:33:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-19 08:33:17,817 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:33:17,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:17,820 INFO L225 Difference]: With dead ends: 1920 [2022-11-19 08:33:17,820 INFO L226 Difference]: Without dead ends: 1920 [2022-11-19 08:33:17,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2022-11-19 08:33:17,821 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 255 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:17,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 145 Invalid, 1654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1563 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-19 08:33:17,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2022-11-19 08:33:17,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 937. [2022-11-19 08:33:17,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 925 states have (on average 1.9513513513513514) internal successors, (1805), 936 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:17,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1805 transitions. [2022-11-19 08:33:17,845 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1805 transitions. Word has length 18 [2022-11-19 08:33:17,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:17,845 INFO L495 AbstractCegarLoop]: Abstraction has 937 states and 1805 transitions. [2022-11-19 08:33:17,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:17,846 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1805 transitions. [2022-11-19 08:33:17,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:33:17,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:17,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:17,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-19 08:33:17,847 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:33:17,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:17,847 INFO L85 PathProgramCache]: Analyzing trace with hash -641687802, now seen corresponding path program 6 times [2022-11-19 08:33:17,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:17,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921988797] [2022-11-19 08:33:17,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:17,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:18,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:18,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:18,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921988797] [2022-11-19 08:33:18,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921988797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:18,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:18,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:33:18,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183890337] [2022-11-19 08:33:18,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:18,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:33:18,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:18,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:33:18,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:33:18,619 INFO L87 Difference]: Start difference. First operand 937 states and 1805 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:21,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:21,015 INFO L93 Difference]: Finished difference Result 1918 states and 3690 transitions. [2022-11-19 08:33:21,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-19 08:33:21,016 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:33:21,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:21,020 INFO L225 Difference]: With dead ends: 1918 [2022-11-19 08:33:21,020 INFO L226 Difference]: Without dead ends: 1918 [2022-11-19 08:33:21,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=271, Invalid=919, Unknown=0, NotChecked=0, Total=1190 [2022-11-19 08:33:21,021 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 292 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:21,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 232 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-19 08:33:21,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2022-11-19 08:33:21,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 894. [2022-11-19 08:33:21,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 884 states have (on average 1.9502262443438914) internal successors, (1724), 893 states have internal predecessors, (1724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:21,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1724 transitions. [2022-11-19 08:33:21,046 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1724 transitions. Word has length 18 [2022-11-19 08:33:21,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:21,047 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1724 transitions. [2022-11-19 08:33:21,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:21,047 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1724 transitions. [2022-11-19 08:33:21,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:33:21,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:21,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:21,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-19 08:33:21,048 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:33:21,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:21,049 INFO L85 PathProgramCache]: Analyzing trace with hash 307855547, now seen corresponding path program 3 times [2022-11-19 08:33:21,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:21,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435430692] [2022-11-19 08:33:21,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:21,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:21,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:21,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:21,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435430692] [2022-11-19 08:33:21,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435430692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:21,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:21,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:33:21,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342284030] [2022-11-19 08:33:21,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:21,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:33:21,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:21,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:33:21,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:33:21,874 INFO L87 Difference]: Start difference. First operand 894 states and 1724 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:24,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:24,509 INFO L93 Difference]: Finished difference Result 2088 states and 3984 transitions. [2022-11-19 08:33:24,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-19 08:33:24,509 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:33:24,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:24,514 INFO L225 Difference]: With dead ends: 2088 [2022-11-19 08:33:24,514 INFO L226 Difference]: Without dead ends: 2088 [2022-11-19 08:33:24,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=661, Unknown=0, NotChecked=0, Total=870 [2022-11-19 08:33:24,515 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 397 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:24,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 153 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-19 08:33:24,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2022-11-19 08:33:24,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 832. [2022-11-19 08:33:24,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 822 states have (on average 1.9464720194647203) internal successors, (1600), 831 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:24,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1600 transitions. [2022-11-19 08:33:24,541 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1600 transitions. Word has length 18 [2022-11-19 08:33:24,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:24,541 INFO L495 AbstractCegarLoop]: Abstraction has 832 states and 1600 transitions. [2022-11-19 08:33:24,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:24,542 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1600 transitions. [2022-11-19 08:33:24,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:33:24,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:24,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:24,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-19 08:33:24,543 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:33:24,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:24,543 INFO L85 PathProgramCache]: Analyzing trace with hash -869218217, now seen corresponding path program 4 times [2022-11-19 08:33:24,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:24,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873507681] [2022-11-19 08:33:24,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:24,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:25,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:25,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:25,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873507681] [2022-11-19 08:33:25,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873507681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:25,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:25,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:33:25,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194982465] [2022-11-19 08:33:25,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:25,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:33:25,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:25,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:33:25,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:33:25,498 INFO L87 Difference]: Start difference. First operand 832 states and 1600 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:28,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:28,367 INFO L93 Difference]: Finished difference Result 1804 states and 3459 transitions. [2022-11-19 08:33:28,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-19 08:33:28,368 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:33:28,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:28,371 INFO L225 Difference]: With dead ends: 1804 [2022-11-19 08:33:28,371 INFO L226 Difference]: Without dead ends: 1804 [2022-11-19 08:33:28,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=200, Invalid=612, Unknown=0, NotChecked=0, Total=812 [2022-11-19 08:33:28,372 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 219 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 1658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:28,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 138 Invalid, 1658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-19 08:33:28,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1804 states. [2022-11-19 08:33:28,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1804 to 832. [2022-11-19 08:33:28,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 822 states have (on average 1.9464720194647203) internal successors, (1600), 831 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:28,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1600 transitions. [2022-11-19 08:33:28,395 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1600 transitions. Word has length 18 [2022-11-19 08:33:28,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:28,396 INFO L495 AbstractCegarLoop]: Abstraction has 832 states and 1600 transitions. [2022-11-19 08:33:28,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:28,396 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1600 transitions. [2022-11-19 08:33:28,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:33:28,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:28,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:28,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-19 08:33:28,397 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:33:28,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:28,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1924402427, now seen corresponding path program 5 times [2022-11-19 08:33:28,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:28,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658259254] [2022-11-19 08:33:28,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:28,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:29,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:29,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:29,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658259254] [2022-11-19 08:33:29,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658259254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:29,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:29,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:33:29,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532176217] [2022-11-19 08:33:29,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:29,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:33:29,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:29,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:33:29,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:33:29,207 INFO L87 Difference]: Start difference. First operand 832 states and 1600 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:32,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:32,476 INFO L93 Difference]: Finished difference Result 1781 states and 3413 transitions. [2022-11-19 08:33:32,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-19 08:33:32,476 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:33:32,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:32,480 INFO L225 Difference]: With dead ends: 1781 [2022-11-19 08:33:32,480 INFO L226 Difference]: Without dead ends: 1781 [2022-11-19 08:33:32,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=233, Invalid=759, Unknown=0, NotChecked=0, Total=992 [2022-11-19 08:33:32,481 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 255 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:32,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 140 Invalid, 1882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1728 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-19 08:33:32,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2022-11-19 08:33:32,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 714. [2022-11-19 08:33:32,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 705 states have (on average 1.9347517730496453) internal successors, (1364), 713 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:32,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 1364 transitions. [2022-11-19 08:33:32,502 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 1364 transitions. Word has length 18 [2022-11-19 08:33:32,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:32,502 INFO L495 AbstractCegarLoop]: Abstraction has 714 states and 1364 transitions. [2022-11-19 08:33:32,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:32,502 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 1364 transitions. [2022-11-19 08:33:32,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:33:32,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:32,503 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:32,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-19 08:33:32,504 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:33:32,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:32,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1421995489, now seen corresponding path program 1 times [2022-11-19 08:33:32,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:32,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753274988] [2022-11-19 08:33:32,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:32,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:33,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:33,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:33,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753274988] [2022-11-19 08:33:33,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753274988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:33,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:33,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-19 08:33:33,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776523939] [2022-11-19 08:33:33,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:33,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 08:33:33,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:33,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 08:33:33,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:33:33,625 INFO L87 Difference]: Start difference. First operand 714 states and 1364 transitions. Second operand has 13 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:36,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:36,375 INFO L93 Difference]: Finished difference Result 1778 states and 3383 transitions. [2022-11-19 08:33:36,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-19 08:33:36,376 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:33:36,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:36,379 INFO L225 Difference]: With dead ends: 1778 [2022-11-19 08:33:36,380 INFO L226 Difference]: Without dead ends: 1778 [2022-11-19 08:33:36,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2022-11-19 08:33:36,381 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 228 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:36,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 209 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-19 08:33:36,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2022-11-19 08:33:36,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 814. [2022-11-19 08:33:36,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 805 states have (on average 1.9428571428571428) internal successors, (1564), 813 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:36,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1564 transitions. [2022-11-19 08:33:36,403 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1564 transitions. Word has length 24 [2022-11-19 08:33:36,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:36,403 INFO L495 AbstractCegarLoop]: Abstraction has 814 states and 1564 transitions. [2022-11-19 08:33:36,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:36,404 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1564 transitions. [2022-11-19 08:33:36,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:33:36,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:36,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:36,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-19 08:33:36,405 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:33:36,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:36,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1553131573, now seen corresponding path program 2 times [2022-11-19 08:33:36,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:36,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901716200] [2022-11-19 08:33:36,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:36,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:37,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:37,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:37,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901716200] [2022-11-19 08:33:37,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901716200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:37,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:37,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:33:37,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349767378] [2022-11-19 08:33:37,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:37,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:33:37,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:37,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:33:37,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:33:37,363 INFO L87 Difference]: Start difference. First operand 814 states and 1564 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:39,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:39,873 INFO L93 Difference]: Finished difference Result 1309 states and 2516 transitions. [2022-11-19 08:33:39,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 08:33:39,874 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:33:39,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:39,876 INFO L225 Difference]: With dead ends: 1309 [2022-11-19 08:33:39,876 INFO L226 Difference]: Without dead ends: 1309 [2022-11-19 08:33:39,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-11-19 08:33:39,877 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 126 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:39,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 117 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-19 08:33:39,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2022-11-19 08:33:39,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 819. [2022-11-19 08:33:39,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 810 states have (on average 1.94320987654321) internal successors, (1574), 818 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:39,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1574 transitions. [2022-11-19 08:33:39,896 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1574 transitions. Word has length 24 [2022-11-19 08:33:39,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:39,897 INFO L495 AbstractCegarLoop]: Abstraction has 819 states and 1574 transitions. [2022-11-19 08:33:39,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:39,897 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1574 transitions. [2022-11-19 08:33:39,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:33:39,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:39,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:39,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-19 08:33:39,899 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:33:39,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:39,899 INFO L85 PathProgramCache]: Analyzing trace with hash 183646159, now seen corresponding path program 3 times [2022-11-19 08:33:39,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:39,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849895567] [2022-11-19 08:33:39,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:39,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:40,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:40,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:40,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849895567] [2022-11-19 08:33:40,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849895567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:40,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:40,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 08:33:40,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24495347] [2022-11-19 08:33:40,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:40,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 08:33:40,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:40,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 08:33:40,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:33:40,922 INFO L87 Difference]: Start difference. First operand 819 states and 1574 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:43,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:43,297 INFO L93 Difference]: Finished difference Result 1163 states and 2243 transitions. [2022-11-19 08:33:43,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 08:33:43,298 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:33:43,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:43,300 INFO L225 Difference]: With dead ends: 1163 [2022-11-19 08:33:43,300 INFO L226 Difference]: Without dead ends: 1163 [2022-11-19 08:33:43,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:33:43,301 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 81 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:43,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 110 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-19 08:33:43,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2022-11-19 08:33:43,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 831. [2022-11-19 08:33:43,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 822 states have (on average 1.9440389294403893) internal successors, (1598), 830 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:43,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1598 transitions. [2022-11-19 08:33:43,317 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1598 transitions. Word has length 24 [2022-11-19 08:33:43,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:43,318 INFO L495 AbstractCegarLoop]: Abstraction has 831 states and 1598 transitions. [2022-11-19 08:33:43,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:43,318 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1598 transitions. [2022-11-19 08:33:43,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:33:43,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:43,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:43,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-19 08:33:43,320 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:33:43,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:43,320 INFO L85 PathProgramCache]: Analyzing trace with hash 128829545, now seen corresponding path program 4 times [2022-11-19 08:33:43,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:43,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356293676] [2022-11-19 08:33:43,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:43,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:44,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:44,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:44,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356293676] [2022-11-19 08:33:44,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356293676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:44,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:44,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-19 08:33:44,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792615295] [2022-11-19 08:33:44,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:44,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 08:33:44,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:44,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 08:33:44,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:33:44,325 INFO L87 Difference]: Start difference. First operand 831 states and 1598 transitions. Second operand has 13 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:47,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:47,893 INFO L93 Difference]: Finished difference Result 1150 states and 2219 transitions. [2022-11-19 08:33:47,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:33:47,893 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:33:47,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:47,895 INFO L225 Difference]: With dead ends: 1150 [2022-11-19 08:33:47,895 INFO L226 Difference]: Without dead ends: 1150 [2022-11-19 08:33:47,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-11-19 08:33:47,896 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 98 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:47,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 120 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-19 08:33:47,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2022-11-19 08:33:47,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 834. [2022-11-19 08:33:47,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 825 states have (on average 1.9442424242424243) internal successors, (1604), 833 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:47,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1604 transitions. [2022-11-19 08:33:47,914 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1604 transitions. Word has length 24 [2022-11-19 08:33:47,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:47,915 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1604 transitions. [2022-11-19 08:33:47,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:47,915 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1604 transitions. [2022-11-19 08:33:47,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:33:47,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:47,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:47,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-19 08:33:47,917 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:33:47,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:47,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1081139167, now seen corresponding path program 5 times [2022-11-19 08:33:47,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:47,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104042039] [2022-11-19 08:33:47,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:47,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:48,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:48,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:48,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104042039] [2022-11-19 08:33:48,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104042039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:48,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:48,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:33:48,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147087656] [2022-11-19 08:33:48,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:48,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:33:48,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:48,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:33:48,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:33:48,948 INFO L87 Difference]: Start difference. First operand 834 states and 1604 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:51,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:51,051 INFO L93 Difference]: Finished difference Result 1272 states and 2448 transitions. [2022-11-19 08:33:51,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 08:33:51,052 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:33:51,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:51,053 INFO L225 Difference]: With dead ends: 1272 [2022-11-19 08:33:51,053 INFO L226 Difference]: Without dead ends: 1272 [2022-11-19 08:33:51,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2022-11-19 08:33:51,054 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 118 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:51,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 92 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-19 08:33:51,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2022-11-19 08:33:51,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 848. [2022-11-19 08:33:51,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 839 states have (on average 1.9451728247914184) internal successors, (1632), 847 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:51,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1632 transitions. [2022-11-19 08:33:51,071 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1632 transitions. Word has length 24 [2022-11-19 08:33:51,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:51,071 INFO L495 AbstractCegarLoop]: Abstraction has 848 states and 1632 transitions. [2022-11-19 08:33:51,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:51,072 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1632 transitions. [2022-11-19 08:33:51,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:33:51,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:51,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:51,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-19 08:33:51,073 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:33:51,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:51,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1730238057, now seen corresponding path program 6 times [2022-11-19 08:33:51,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:51,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264832857] [2022-11-19 08:33:51,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:51,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:52,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:52,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:52,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264832857] [2022-11-19 08:33:52,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264832857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:52,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:52,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:33:52,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861143409] [2022-11-19 08:33:52,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:52,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:33:52,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:52,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:33:52,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:33:52,039 INFO L87 Difference]: Start difference. First operand 848 states and 1632 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:54,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:54,726 INFO L93 Difference]: Finished difference Result 1289 states and 2480 transitions. [2022-11-19 08:33:54,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:33:54,727 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:33:54,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:54,728 INFO L225 Difference]: With dead ends: 1289 [2022-11-19 08:33:54,728 INFO L226 Difference]: Without dead ends: 1289 [2022-11-19 08:33:54,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2022-11-19 08:33:54,729 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 120 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:54,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 100 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 08:33:54,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2022-11-19 08:33:54,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 846. [2022-11-19 08:33:54,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 837 states have (on average 1.945041816009558) internal successors, (1628), 845 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:54,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1628 transitions. [2022-11-19 08:33:54,748 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1628 transitions. Word has length 24 [2022-11-19 08:33:54,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:54,748 INFO L495 AbstractCegarLoop]: Abstraction has 846 states and 1628 transitions. [2022-11-19 08:33:54,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:54,749 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1628 transitions. [2022-11-19 08:33:54,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:33:54,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:54,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:54,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-19 08:33:54,750 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:33:54,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:54,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1383484009, now seen corresponding path program 7 times [2022-11-19 08:33:54,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:54,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181375287] [2022-11-19 08:33:54,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:54,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:55,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:55,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:55,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181375287] [2022-11-19 08:33:55,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181375287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:55,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:55,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:33:55,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541439898] [2022-11-19 08:33:55,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:55,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:33:55,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:55,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:33:55,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:33:55,805 INFO L87 Difference]: Start difference. First operand 846 states and 1628 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:58,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:58,509 INFO L93 Difference]: Finished difference Result 1323 states and 2544 transitions. [2022-11-19 08:33:58,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 08:33:58,509 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:33:58,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:58,511 INFO L225 Difference]: With dead ends: 1323 [2022-11-19 08:33:58,511 INFO L226 Difference]: Without dead ends: 1323 [2022-11-19 08:33:58,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-11-19 08:33:58,512 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 126 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:58,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 109 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-19 08:33:58,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1323 states. [2022-11-19 08:33:58,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1323 to 834. [2022-11-19 08:33:58,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 825 states have (on average 1.9442424242424243) internal successors, (1604), 833 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:58,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1604 transitions. [2022-11-19 08:33:58,529 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1604 transitions. Word has length 24 [2022-11-19 08:33:58,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:58,529 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1604 transitions. [2022-11-19 08:33:58,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:33:58,530 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1604 transitions. [2022-11-19 08:33:58,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:33:58,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:58,531 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:58,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-19 08:33:58,531 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:33:58,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:58,532 INFO L85 PathProgramCache]: Analyzing trace with hash -378666787, now seen corresponding path program 8 times [2022-11-19 08:33:58,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:58,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316297252] [2022-11-19 08:33:58,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:58,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:59,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:59,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:59,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316297252] [2022-11-19 08:33:59,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316297252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:59,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:59,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:33:59,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188469074] [2022-11-19 08:33:59,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:59,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:33:59,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:59,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:33:59,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:33:59,852 INFO L87 Difference]: Start difference. First operand 834 states and 1604 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:02,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:02,388 INFO L93 Difference]: Finished difference Result 1081 states and 2070 transitions. [2022-11-19 08:34:02,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-19 08:34:02,388 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:34:02,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:02,390 INFO L225 Difference]: With dead ends: 1081 [2022-11-19 08:34:02,390 INFO L226 Difference]: Without dead ends: 1081 [2022-11-19 08:34:02,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2022-11-19 08:34:02,391 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 114 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:02,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 76 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-19 08:34:02,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2022-11-19 08:34:02,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 846. [2022-11-19 08:34:02,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 837 states have (on average 1.945041816009558) internal successors, (1628), 845 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:02,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1628 transitions. [2022-11-19 08:34:02,403 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1628 transitions. Word has length 24 [2022-11-19 08:34:02,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:02,404 INFO L495 AbstractCegarLoop]: Abstraction has 846 states and 1628 transitions. [2022-11-19 08:34:02,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:02,404 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1628 transitions. [2022-11-19 08:34:02,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:34:02,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:02,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:02,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-19 08:34:02,406 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:34:02,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:02,406 INFO L85 PathProgramCache]: Analyzing trace with hash 733668105, now seen corresponding path program 9 times [2022-11-19 08:34:02,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:02,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478378008] [2022-11-19 08:34:02,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:02,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:02,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:04,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:04,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:04,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478378008] [2022-11-19 08:34:04,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478378008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:04,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:04,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:34:04,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326440770] [2022-11-19 08:34:04,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:04,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:34:04,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:04,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:34:04,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:34:04,220 INFO L87 Difference]: Start difference. First operand 846 states and 1628 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:07,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:07,752 INFO L93 Difference]: Finished difference Result 1087 states and 2082 transitions. [2022-11-19 08:34:07,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-19 08:34:07,753 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:34:07,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:07,754 INFO L225 Difference]: With dead ends: 1087 [2022-11-19 08:34:07,754 INFO L226 Difference]: Without dead ends: 1087 [2022-11-19 08:34:07,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2022-11-19 08:34:07,755 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 101 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:07,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 85 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-19 08:34:07,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2022-11-19 08:34:07,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 848. [2022-11-19 08:34:07,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 839 states have (on average 1.9451728247914184) internal successors, (1632), 847 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:07,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1632 transitions. [2022-11-19 08:34:07,770 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1632 transitions. Word has length 24 [2022-11-19 08:34:07,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:07,770 INFO L495 AbstractCegarLoop]: Abstraction has 848 states and 1632 transitions. [2022-11-19 08:34:07,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:07,770 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1632 transitions. [2022-11-19 08:34:07,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:34:07,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:07,772 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:07,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-19 08:34:07,772 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:34:07,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:07,773 INFO L85 PathProgramCache]: Analyzing trace with hash -505829589, now seen corresponding path program 10 times [2022-11-19 08:34:07,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:07,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019555601] [2022-11-19 08:34:07,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:07,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:08,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:08,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:08,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019555601] [2022-11-19 08:34:08,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019555601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:08,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:08,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:34:08,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527252715] [2022-11-19 08:34:08,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:08,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:34:08,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:08,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:34:08,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:34:08,931 INFO L87 Difference]: Start difference. First operand 848 states and 1632 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:12,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:12,075 INFO L93 Difference]: Finished difference Result 1102 states and 2112 transitions. [2022-11-19 08:34:12,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:34:12,075 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:34:12,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:12,077 INFO L225 Difference]: With dead ends: 1102 [2022-11-19 08:34:12,077 INFO L226 Difference]: Without dead ends: 1102 [2022-11-19 08:34:12,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2022-11-19 08:34:12,077 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 98 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:12,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 65 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-19 08:34:12,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2022-11-19 08:34:12,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 858. [2022-11-19 08:34:12,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 849 states have (on average 1.9458186101295643) internal successors, (1652), 857 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:12,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1652 transitions. [2022-11-19 08:34:12,089 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1652 transitions. Word has length 24 [2022-11-19 08:34:12,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:12,089 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 1652 transitions. [2022-11-19 08:34:12,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:12,089 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1652 transitions. [2022-11-19 08:34:12,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:34:12,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:12,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:12,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-19 08:34:12,091 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:34:12,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:12,091 INFO L85 PathProgramCache]: Analyzing trace with hash 606505303, now seen corresponding path program 11 times [2022-11-19 08:34:12,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:12,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730419920] [2022-11-19 08:34:12,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:12,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:12,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:12,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:12,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730419920] [2022-11-19 08:34:12,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730419920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:12,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:12,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 08:34:12,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858712264] [2022-11-19 08:34:12,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:12,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 08:34:12,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:12,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 08:34:12,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:34:12,999 INFO L87 Difference]: Start difference. First operand 858 states and 1652 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:15,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:15,171 INFO L93 Difference]: Finished difference Result 933 states and 1777 transitions. [2022-11-19 08:34:15,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-19 08:34:15,171 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:34:15,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:15,172 INFO L225 Difference]: With dead ends: 933 [2022-11-19 08:34:15,172 INFO L226 Difference]: Without dead ends: 933 [2022-11-19 08:34:15,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2022-11-19 08:34:15,173 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 107 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:15,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 68 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-19 08:34:15,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2022-11-19 08:34:15,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 853. [2022-11-19 08:34:15,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 844 states have (on average 1.9454976303317535) internal successors, (1642), 852 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:15,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1642 transitions. [2022-11-19 08:34:15,185 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1642 transitions. Word has length 24 [2022-11-19 08:34:15,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:15,185 INFO L495 AbstractCegarLoop]: Abstraction has 853 states and 1642 transitions. [2022-11-19 08:34:15,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:15,186 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1642 transitions. [2022-11-19 08:34:15,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:34:15,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:15,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:15,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-19 08:34:15,187 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:34:15,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:15,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1823931895, now seen corresponding path program 12 times [2022-11-19 08:34:15,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:15,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179583742] [2022-11-19 08:34:15,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:15,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:16,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:16,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:16,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179583742] [2022-11-19 08:34:16,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179583742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:16,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:16,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:34:16,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615339011] [2022-11-19 08:34:16,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:16,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:34:16,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:16,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:34:16,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:34:16,353 INFO L87 Difference]: Start difference. First operand 853 states and 1642 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:19,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:19,511 INFO L93 Difference]: Finished difference Result 1118 states and 2144 transitions. [2022-11-19 08:34:19,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 08:34:19,512 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:34:19,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:19,513 INFO L225 Difference]: With dead ends: 1118 [2022-11-19 08:34:19,513 INFO L226 Difference]: Without dead ends: 1118 [2022-11-19 08:34:19,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2022-11-19 08:34:19,514 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 110 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:19,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 67 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-19 08:34:19,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-11-19 08:34:19,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 855. [2022-11-19 08:34:19,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 846 states have (on average 1.9456264775413712) internal successors, (1646), 854 states have internal predecessors, (1646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:19,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1646 transitions. [2022-11-19 08:34:19,526 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1646 transitions. Word has length 24 [2022-11-19 08:34:19,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:19,526 INFO L495 AbstractCegarLoop]: Abstraction has 855 states and 1646 transitions. [2022-11-19 08:34:19,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:19,526 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1646 transitions. [2022-11-19 08:34:19,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:34:19,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:19,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:19,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-19 08:34:19,528 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:34:19,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:19,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1783628027, now seen corresponding path program 13 times [2022-11-19 08:34:19,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:19,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966678487] [2022-11-19 08:34:19,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:19,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:20,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:20,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:20,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966678487] [2022-11-19 08:34:20,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966678487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:20,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:20,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:34:20,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646735706] [2022-11-19 08:34:20,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:20,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:34:20,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:20,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:34:20,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:34:20,639 INFO L87 Difference]: Start difference. First operand 855 states and 1646 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:22,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:22,884 INFO L93 Difference]: Finished difference Result 1131 states and 2169 transitions. [2022-11-19 08:34:22,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 08:34:22,885 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:34:22,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:22,886 INFO L225 Difference]: With dead ends: 1131 [2022-11-19 08:34:22,886 INFO L226 Difference]: Without dead ends: 1131 [2022-11-19 08:34:22,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2022-11-19 08:34:22,887 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 101 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:22,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 61 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-19 08:34:22,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2022-11-19 08:34:22,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 870. [2022-11-19 08:34:22,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 861 states have (on average 1.9465737514518002) internal successors, (1676), 869 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:22,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1676 transitions. [2022-11-19 08:34:22,896 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1676 transitions. Word has length 24 [2022-11-19 08:34:22,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:22,896 INFO L495 AbstractCegarLoop]: Abstraction has 870 states and 1676 transitions. [2022-11-19 08:34:22,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:22,896 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1676 transitions. [2022-11-19 08:34:22,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:34:22,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:22,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:22,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-19 08:34:22,898 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:34:22,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:22,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1399004377, now seen corresponding path program 14 times [2022-11-19 08:34:22,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:22,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069512395] [2022-11-19 08:34:22,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:22,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:24,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:24,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:24,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069512395] [2022-11-19 08:34:24,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069512395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:24,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:24,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:34:24,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597617274] [2022-11-19 08:34:24,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:24,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:34:24,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:24,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:34:24,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:34:24,153 INFO L87 Difference]: Start difference. First operand 870 states and 1676 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:27,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:27,066 INFO L93 Difference]: Finished difference Result 1131 states and 2170 transitions. [2022-11-19 08:34:27,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:34:27,066 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:34:27,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:27,068 INFO L225 Difference]: With dead ends: 1131 [2022-11-19 08:34:27,068 INFO L226 Difference]: Without dead ends: 1131 [2022-11-19 08:34:27,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-19 08:34:27,069 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 76 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:27,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 64 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 08:34:27,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2022-11-19 08:34:27,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 870. [2022-11-19 08:34:27,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 861 states have (on average 1.9465737514518002) internal successors, (1676), 869 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:27,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1676 transitions. [2022-11-19 08:34:27,081 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1676 transitions. Word has length 24 [2022-11-19 08:34:27,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:27,082 INFO L495 AbstractCegarLoop]: Abstraction has 870 states and 1676 transitions. [2022-11-19 08:34:27,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:27,082 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1676 transitions. [2022-11-19 08:34:27,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:34:27,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:27,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:27,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-19 08:34:27,084 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:34:27,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:27,084 INFO L85 PathProgramCache]: Analyzing trace with hash 465525721, now seen corresponding path program 15 times [2022-11-19 08:34:27,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:27,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613887902] [2022-11-19 08:34:27,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:27,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:28,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:28,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:28,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613887902] [2022-11-19 08:34:28,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613887902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:28,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:28,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:34:28,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053257825] [2022-11-19 08:34:28,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:28,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:34:28,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:28,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:34:28,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:34:28,334 INFO L87 Difference]: Start difference. First operand 870 states and 1676 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:31,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:31,670 INFO L93 Difference]: Finished difference Result 1166 states and 2235 transitions. [2022-11-19 08:34:31,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 08:34:31,671 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:34:31,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:31,672 INFO L225 Difference]: With dead ends: 1166 [2022-11-19 08:34:31,673 INFO L226 Difference]: Without dead ends: 1166 [2022-11-19 08:34:31,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=174, Invalid=426, Unknown=0, NotChecked=0, Total=600 [2022-11-19 08:34:31,673 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 112 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:31,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 81 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 982 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-19 08:34:31,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2022-11-19 08:34:31,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 839. [2022-11-19 08:34:31,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 830 states have (on average 1.9445783132530121) internal successors, (1614), 838 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:31,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1614 transitions. [2022-11-19 08:34:31,685 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1614 transitions. Word has length 24 [2022-11-19 08:34:31,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:31,685 INFO L495 AbstractCegarLoop]: Abstraction has 839 states and 1614 transitions. [2022-11-19 08:34:31,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:31,685 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1614 transitions. [2022-11-19 08:34:31,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:34:31,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:31,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:31,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-19 08:34:31,686 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:34:31,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:31,686 INFO L85 PathProgramCache]: Analyzing trace with hash 595300297, now seen corresponding path program 16 times [2022-11-19 08:34:31,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:31,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896018452] [2022-11-19 08:34:31,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:31,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:32,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:32,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:32,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896018452] [2022-11-19 08:34:32,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896018452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:32,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:32,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:34:32,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715697311] [2022-11-19 08:34:32,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:32,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:34:32,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:32,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:34:32,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:34:32,949 INFO L87 Difference]: Start difference. First operand 839 states and 1614 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:36,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:36,144 INFO L93 Difference]: Finished difference Result 1155 states and 2211 transitions. [2022-11-19 08:34:36,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-19 08:34:36,144 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:34:36,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:36,146 INFO L225 Difference]: With dead ends: 1155 [2022-11-19 08:34:36,146 INFO L226 Difference]: Without dead ends: 1155 [2022-11-19 08:34:36,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=200, Invalid=450, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:34:36,147 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 102 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 931 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:36,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 89 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 931 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-19 08:34:36,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2022-11-19 08:34:36,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 834. [2022-11-19 08:34:36,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 825 states have (on average 1.9442424242424243) internal successors, (1604), 833 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:36,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1604 transitions. [2022-11-19 08:34:36,160 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1604 transitions. Word has length 24 [2022-11-19 08:34:36,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:36,160 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1604 transitions. [2022-11-19 08:34:36,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:36,160 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1604 transitions. [2022-11-19 08:34:36,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:34:36,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:36,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:36,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-19 08:34:36,161 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:34:36,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:36,162 INFO L85 PathProgramCache]: Analyzing trace with hash -388109119, now seen corresponding path program 17 times [2022-11-19 08:34:36,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:36,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514374140] [2022-11-19 08:34:36,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:36,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:37,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:37,031 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:37,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514374140] [2022-11-19 08:34:37,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514374140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:37,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:37,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:34:37,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380341771] [2022-11-19 08:34:37,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:37,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:34:37,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:37,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:34:37,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:34:37,032 INFO L87 Difference]: Start difference. First operand 834 states and 1604 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:40,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:40,114 INFO L93 Difference]: Finished difference Result 1702 states and 3275 transitions. [2022-11-19 08:34:40,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-19 08:34:40,114 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:34:40,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:40,116 INFO L225 Difference]: With dead ends: 1702 [2022-11-19 08:34:40,116 INFO L226 Difference]: Without dead ends: 1702 [2022-11-19 08:34:40,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2022-11-19 08:34:40,117 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 200 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:40,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 176 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-19 08:34:40,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2022-11-19 08:34:40,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 862. [2022-11-19 08:34:40,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 853 states have (on average 1.9460726846424385) internal successors, (1660), 861 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:40,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1660 transitions. [2022-11-19 08:34:40,133 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1660 transitions. Word has length 24 [2022-11-19 08:34:40,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:40,133 INFO L495 AbstractCegarLoop]: Abstraction has 862 states and 1660 transitions. [2022-11-19 08:34:40,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:40,133 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1660 transitions. [2022-11-19 08:34:40,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:34:40,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:40,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:40,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-19 08:34:40,135 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:34:40,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:40,136 INFO L85 PathProgramCache]: Analyzing trace with hash -343118551, now seen corresponding path program 18 times [2022-11-19 08:34:40,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:40,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778763273] [2022-11-19 08:34:40,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:40,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:40,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:40,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:40,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778763273] [2022-11-19 08:34:40,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778763273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:40,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:40,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:34:40,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673899748] [2022-11-19 08:34:40,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:41,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:34:41,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:41,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:34:41,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:34:41,001 INFO L87 Difference]: Start difference. First operand 862 states and 1660 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:43,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:43,608 INFO L93 Difference]: Finished difference Result 1535 states and 2986 transitions. [2022-11-19 08:34:43,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-19 08:34:43,609 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:34:43,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:43,610 INFO L225 Difference]: With dead ends: 1535 [2022-11-19 08:34:43,611 INFO L226 Difference]: Without dead ends: 1535 [2022-11-19 08:34:43,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2022-11-19 08:34:43,611 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 159 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:43,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 163 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 08:34:43,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2022-11-19 08:34:43,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 862. [2022-11-19 08:34:43,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 853 states have (on average 1.9460726846424385) internal successors, (1660), 861 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:43,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1660 transitions. [2022-11-19 08:34:43,625 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1660 transitions. Word has length 24 [2022-11-19 08:34:43,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:43,626 INFO L495 AbstractCegarLoop]: Abstraction has 862 states and 1660 transitions. [2022-11-19 08:34:43,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:43,626 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1660 transitions. [2022-11-19 08:34:43,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:34:43,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:43,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:43,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-19 08:34:43,628 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:34:43,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:43,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1393659181, now seen corresponding path program 19 times [2022-11-19 08:34:43,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:43,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221977036] [2022-11-19 08:34:43,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:43,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:45,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:45,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:45,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221977036] [2022-11-19 08:34:45,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221977036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:45,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:45,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:34:45,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217004818] [2022-11-19 08:34:45,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:45,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:34:45,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:45,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:34:45,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:34:45,027 INFO L87 Difference]: Start difference. First operand 862 states and 1660 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:48,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:48,232 INFO L93 Difference]: Finished difference Result 1531 states and 2980 transitions. [2022-11-19 08:34:48,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-19 08:34:48,233 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:34:48,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:48,235 INFO L225 Difference]: With dead ends: 1531 [2022-11-19 08:34:48,235 INFO L226 Difference]: Without dead ends: 1531 [2022-11-19 08:34:48,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2022-11-19 08:34:48,235 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 134 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:48,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 190 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-19 08:34:48,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2022-11-19 08:34:48,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 862. [2022-11-19 08:34:48,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 853 states have (on average 1.9460726846424385) internal successors, (1660), 861 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:48,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1660 transitions. [2022-11-19 08:34:48,248 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1660 transitions. Word has length 24 [2022-11-19 08:34:48,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:48,248 INFO L495 AbstractCegarLoop]: Abstraction has 862 states and 1660 transitions. [2022-11-19 08:34:48,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:48,249 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1660 transitions. [2022-11-19 08:34:48,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:34:48,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:48,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:48,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-19 08:34:48,250 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:34:48,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:48,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1338842567, now seen corresponding path program 20 times [2022-11-19 08:34:48,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:48,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447202870] [2022-11-19 08:34:48,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:48,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:48,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:49,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:49,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:49,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447202870] [2022-11-19 08:34:49,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447202870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:49,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:49,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:34:49,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129122437] [2022-11-19 08:34:49,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:49,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:34:49,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:49,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:34:49,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:34:49,034 INFO L87 Difference]: Start difference. First operand 862 states and 1660 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:51,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:51,253 INFO L93 Difference]: Finished difference Result 1488 states and 2898 transitions. [2022-11-19 08:34:51,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-19 08:34:51,254 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:34:51,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:51,255 INFO L225 Difference]: With dead ends: 1488 [2022-11-19 08:34:51,256 INFO L226 Difference]: Without dead ends: 1488 [2022-11-19 08:34:51,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2022-11-19 08:34:51,256 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 152 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:51,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 153 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-19 08:34:51,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-11-19 08:34:51,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 838. [2022-11-19 08:34:51,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 829 states have (on average 1.9445114595898674) internal successors, (1612), 837 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:51,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1612 transitions. [2022-11-19 08:34:51,274 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1612 transitions. Word has length 24 [2022-11-19 08:34:51,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:51,274 INFO L495 AbstractCegarLoop]: Abstraction has 838 states and 1612 transitions. [2022-11-19 08:34:51,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:51,275 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1612 transitions. [2022-11-19 08:34:51,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:34:51,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:51,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:51,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-19 08:34:51,276 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:34:51,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:51,277 INFO L85 PathProgramCache]: Analyzing trace with hash 328767759, now seen corresponding path program 21 times [2022-11-19 08:34:51,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:51,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586937055] [2022-11-19 08:34:51,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:51,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:51,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:52,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:52,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:52,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586937055] [2022-11-19 08:34:52,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586937055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:52,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:52,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:34:52,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212688402] [2022-11-19 08:34:52,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:52,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:34:52,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:52,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:34:52,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:34:52,285 INFO L87 Difference]: Start difference. First operand 838 states and 1612 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:55,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:55,075 INFO L93 Difference]: Finished difference Result 1820 states and 3470 transitions. [2022-11-19 08:34:55,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-19 08:34:55,075 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:34:55,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:55,078 INFO L225 Difference]: With dead ends: 1820 [2022-11-19 08:34:55,078 INFO L226 Difference]: Without dead ends: 1820 [2022-11-19 08:34:55,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2022-11-19 08:34:55,079 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 254 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:55,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 147 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-19 08:34:55,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2022-11-19 08:34:55,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 809. [2022-11-19 08:34:55,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 800 states have (on average 1.9425) internal successors, (1554), 808 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:55,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1554 transitions. [2022-11-19 08:34:55,099 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1554 transitions. Word has length 24 [2022-11-19 08:34:55,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:55,100 INFO L495 AbstractCegarLoop]: Abstraction has 809 states and 1554 transitions. [2022-11-19 08:34:55,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:55,100 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1554 transitions. [2022-11-19 08:34:55,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-19 08:34:55,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:55,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:55,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-19 08:34:55,102 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:34:55,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:55,102 INFO L85 PathProgramCache]: Analyzing trace with hash 2144271486, now seen corresponding path program 1 times [2022-11-19 08:34:55,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:55,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446040049] [2022-11-19 08:34:55,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:55,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:55,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:55,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:55,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446040049] [2022-11-19 08:34:55,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446040049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:55,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:55,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 08:34:55,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971598213] [2022-11-19 08:34:55,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:55,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 08:34:55,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:55,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 08:34:55,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:34:55,828 INFO L87 Difference]: Start difference. First operand 809 states and 1554 transitions. Second operand has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:58,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:58,520 INFO L93 Difference]: Finished difference Result 1768 states and 3400 transitions. [2022-11-19 08:34:58,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-19 08:34:58,520 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-19 08:34:58,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:58,523 INFO L225 Difference]: With dead ends: 1768 [2022-11-19 08:34:58,523 INFO L226 Difference]: Without dead ends: 1768 [2022-11-19 08:34:58,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=506, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:34:58,524 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 173 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:58,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 291 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 08:34:58,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2022-11-19 08:34:58,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 769. [2022-11-19 08:34:58,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 760 states have (on average 1.9394736842105262) internal successors, (1474), 768 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:58,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1474 transitions. [2022-11-19 08:34:58,540 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1474 transitions. Word has length 25 [2022-11-19 08:34:58,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:58,540 INFO L495 AbstractCegarLoop]: Abstraction has 769 states and 1474 transitions. [2022-11-19 08:34:58,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:58,541 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1474 transitions. [2022-11-19 08:34:58,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-19 08:34:58,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:58,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:58,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-19 08:34:58,542 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:34:58,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:58,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1402349072, now seen corresponding path program 2 times [2022-11-19 08:34:58,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:58,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906734971] [2022-11-19 08:34:58,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:58,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:59,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:59,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:59,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906734971] [2022-11-19 08:34:59,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906734971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:59,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:59,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:34:59,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852707904] [2022-11-19 08:34:59,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:59,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:34:59,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:59,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:34:59,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:34:59,490 INFO L87 Difference]: Start difference. First operand 769 states and 1474 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:02,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:02,394 INFO L93 Difference]: Finished difference Result 1422 states and 2724 transitions. [2022-11-19 08:35:02,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-19 08:35:02,395 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-19 08:35:02,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:02,397 INFO L225 Difference]: With dead ends: 1422 [2022-11-19 08:35:02,397 INFO L226 Difference]: Without dead ends: 1422 [2022-11-19 08:35:02,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2022-11-19 08:35:02,398 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 210 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:02,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 146 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1154 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-19 08:35:02,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2022-11-19 08:35:02,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 679. [2022-11-19 08:35:02,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 671 states have (on average 1.9359165424739195) internal successors, (1299), 678 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:02,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 1299 transitions. [2022-11-19 08:35:02,408 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 1299 transitions. Word has length 25 [2022-11-19 08:35:02,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:02,409 INFO L495 AbstractCegarLoop]: Abstraction has 679 states and 1299 transitions. [2022-11-19 08:35:02,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:02,409 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 1299 transitions. [2022-11-19 08:35:02,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 08:35:02,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:02,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:02,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-19 08:35:02,410 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting t_funErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:35:02,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:02,411 INFO L85 PathProgramCache]: Analyzing trace with hash 605895148, now seen corresponding path program 1 times [2022-11-19 08:35:02,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:02,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913883213] [2022-11-19 08:35:02,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:02,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:02,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:02,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:02,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913883213] [2022-11-19 08:35:02,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913883213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:02,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:02,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:35:02,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226416516] [2022-11-19 08:35:02,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:02,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:35:02,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:02,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:35:02,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:35:02,697 INFO L87 Difference]: Start difference. First operand 679 states and 1299 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:03,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:03,825 INFO L93 Difference]: Finished difference Result 754 states and 1437 transitions. [2022-11-19 08:35:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:35:03,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-19 08:35:03,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:03,826 INFO L225 Difference]: With dead ends: 754 [2022-11-19 08:35:03,827 INFO L226 Difference]: Without dead ends: 754 [2022-11-19 08:35:03,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:35:03,827 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 36 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:03,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 36 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-19 08:35:03,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2022-11-19 08:35:03,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 726. [2022-11-19 08:35:03,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 718 states have (on average 1.934540389972145) internal successors, (1389), 725 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:03,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1389 transitions. [2022-11-19 08:35:03,840 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1389 transitions. Word has length 27 [2022-11-19 08:35:03,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:03,840 INFO L495 AbstractCegarLoop]: Abstraction has 726 states and 1389 transitions. [2022-11-19 08:35:03,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:03,840 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1389 transitions. [2022-11-19 08:35:03,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 08:35:03,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:03,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:03,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-19 08:35:03,842 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-19 08:35:03,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:03,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1807263455, now seen corresponding path program 1 times [2022-11-19 08:35:03,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:03,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782009467] [2022-11-19 08:35:03,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:03,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:35:03,890 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:35:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:35:03,954 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 08:35:03,954 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:35:03,955 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (29 of 30 remaining) [2022-11-19 08:35:03,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 30 remaining) [2022-11-19 08:35:03,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 30 remaining) [2022-11-19 08:35:03,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (26 of 30 remaining) [2022-11-19 08:35:03,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (25 of 30 remaining) [2022-11-19 08:35:03,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (24 of 30 remaining) [2022-11-19 08:35:03,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (23 of 30 remaining) [2022-11-19 08:35:03,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (22 of 30 remaining) [2022-11-19 08:35:03,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (21 of 30 remaining) [2022-11-19 08:35:03,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (20 of 30 remaining) [2022-11-19 08:35:03,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (19 of 30 remaining) [2022-11-19 08:35:03,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (18 of 30 remaining) [2022-11-19 08:35:03,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (17 of 30 remaining) [2022-11-19 08:35:03,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (16 of 30 remaining) [2022-11-19 08:35:03,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (15 of 30 remaining) [2022-11-19 08:35:03,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 30 remaining) [2022-11-19 08:35:03,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 30 remaining) [2022-11-19 08:35:03,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 30 remaining) [2022-11-19 08:35:03,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 30 remaining) [2022-11-19 08:35:03,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 30 remaining) [2022-11-19 08:35:03,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 30 remaining) [2022-11-19 08:35:03,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (8 of 30 remaining) [2022-11-19 08:35:03,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (7 of 30 remaining) [2022-11-19 08:35:03,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 30 remaining) [2022-11-19 08:35:03,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 30 remaining) [2022-11-19 08:35:03,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (4 of 30 remaining) [2022-11-19 08:35:03,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 30 remaining) [2022-11-19 08:35:03,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 30 remaining) [2022-11-19 08:35:03,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (1 of 30 remaining) [2022-11-19 08:35:03,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (0 of 30 remaining) [2022-11-19 08:35:03,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-19 08:35:03,965 INFO L444 BasicCegarLoop]: Path program histogram: [21, 6, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:03,972 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 08:35:03,972 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:35:04,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:35:04 BasicIcfg [2022-11-19 08:35:04,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:35:04,028 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:35:04,028 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:35:04,028 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:35:04,029 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:25:25" (3/4) ... [2022-11-19 08:35:04,031 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 08:35:04,031 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:35:04,032 INFO L158 Benchmark]: Toolchain (without parser) took 580411.56ms. Allocated memory was 102.8MB in the beginning and 490.7MB in the end (delta: 388.0MB). Free memory was 67.1MB in the beginning and 306.7MB in the end (delta: -239.6MB). Peak memory consumption was 149.1MB. Max. memory is 16.1GB. [2022-11-19 08:35:04,032 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 102.8MB. Free memory was 53.9MB in the beginning and 53.9MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:35:04,032 INFO L158 Benchmark]: CACSL2BoogieTranslator took 921.58ms. Allocated memory is still 102.8MB. Free memory was 66.9MB in the beginning and 50.6MB in the end (delta: 16.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-19 08:35:04,033 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.48ms. Allocated memory is still 102.8MB. Free memory was 50.6MB in the beginning and 47.1MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:35:04,033 INFO L158 Benchmark]: Boogie Preprocessor took 44.07ms. Allocated memory is still 102.8MB. Free memory was 47.1MB in the beginning and 43.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 08:35:04,033 INFO L158 Benchmark]: RCFGBuilder took 770.83ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 43.9MB in the beginning and 80.0MB in the end (delta: -36.1MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2022-11-19 08:35:04,033 INFO L158 Benchmark]: TraceAbstraction took 578580.15ms. Allocated memory was 127.9MB in the beginning and 490.7MB in the end (delta: 362.8MB). Free memory was 79.4MB in the beginning and 306.7MB in the end (delta: -227.3MB). Peak memory consumption was 135.5MB. Max. memory is 16.1GB. [2022-11-19 08:35:04,034 INFO L158 Benchmark]: Witness Printer took 3.88ms. Allocated memory is still 490.7MB. Free memory is still 306.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:35:04,034 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 102.8MB. Free memory was 53.9MB in the beginning and 53.9MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 921.58ms. Allocated memory is still 102.8MB. Free memory was 66.9MB in the beginning and 50.6MB in the end (delta: 16.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.48ms. Allocated memory is still 102.8MB. Free memory was 50.6MB in the beginning and 47.1MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.07ms. Allocated memory is still 102.8MB. Free memory was 47.1MB in the beginning and 43.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 770.83ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 43.9MB in the beginning and 80.0MB in the end (delta: -36.1MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * TraceAbstraction took 578580.15ms. Allocated memory was 127.9MB in the beginning and 490.7MB in the end (delta: 362.8MB). Free memory was 79.4MB in the beginning and 306.7MB in the end (delta: -227.3MB). Peak memory consumption was 135.5MB. Max. memory is 16.1GB. * Witness Printer took 3.88ms. Allocated memory is still 490.7MB. Free memory is still 306.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 406.1s, 249 PlacesBefore, 76 PlacesAfterwards, 245 TransitionsBefore, 72 TransitionsAfterwards, 4760 CoEnabledTransitionPairs, 21 FixpointIterations, 185 TrivialSequentialCompositions, 87 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 272 TotalNumberOfCompositions, 61094 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13168, independent: 10910, independent conditional: 0, independent unconditional: 10910, dependent: 2258, dependent conditional: 0, dependent unconditional: 2258, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3281, independent: 3151, independent conditional: 0, independent unconditional: 3151, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3281, independent: 2680, independent conditional: 0, independent unconditional: 2680, dependent: 601, dependent conditional: 0, dependent unconditional: 601, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 601, independent: 471, independent conditional: 0, independent unconditional: 471, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 829, independent: 410, independent conditional: 0, independent unconditional: 410, dependent: 419, dependent conditional: 0, dependent unconditional: 419, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13168, independent: 7759, independent conditional: 0, independent unconditional: 7759, dependent: 2128, dependent conditional: 0, dependent unconditional: 2128, unknown: 3281, unknown conditional: 0, unknown unconditional: 3281] , Statistics on independence cache: Total cache size (in pairs): 462, Positive cache size: 371, Positive conditional cache size: 0, Positive unconditional cache size: 371, Negative cache size: 91, Negative conditional cache size: 0, Negative unconditional cache size: 91, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 1261]: Data race detected Data race detected The following path leads to a data race: [L1224-L1227] 0 struct s { int datum; struct s *next; } *A, *B; [L1232] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1233] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1247] 0 pthread_t t1; [L1248] 0 int *ip; [L1249] 0 struct s *sp; [L1250] 0 struct s *p = malloc(sizeof(struct s)); [L1251] CALL 0 init(p,9) [L1229] 0 p -> datum = x [L1230] 0 p -> next = ((void *)0) [L1251] RET 0 init(p,9) [L1252] 0 A = malloc(sizeof(struct s)) [L1253] 0 init(A,3) [L1253] CALL 0 init(A,3) [L1229] 0 p -> datum = x [L1230] 0 p -> next = ((void *)0) [L1253] RET 0 init(A,3) [L1254] EXPR 0 A->next [L1254] 0 A->next = p [L1255] 0 B = malloc(sizeof(struct s)) [L1256] 0 init(B,5) [L1256] CALL 0 init(B,5) [L1229] 0 p -> datum = x [L1230] 0 p -> next = ((void *)0) [L1256] RET 0 init(B,5) [L1257] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={11:0}, A_mutex={1:0}, B={-3:0}, B_mutex={2:0}, p={-2:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={13:0}] [L1235] 1 int *ip; [L1236] 1 struct s *t, *sp = __VERIFIER_nondet_pointer(); [L1237] 1 struct s *p = malloc(sizeof(struct s)); [L1238] CALL 1 init(p,7) [L1229] 1 p -> datum = x VAL [\old(x)=5, \old(x)=7, A={11:0}, A_mutex={1:0}, B={-3:0}, B_mutex={2:0}, p={-3:0}, p={-4:0}, p={-3:0}, p={-4:0}, p -> datum = x=45, x=7, x=5] [L1258] 0 ip = &p->datum [L1259] 0 sp = ((struct s *)((char *)(ip)-(unsigned long)(&((struct s *)0)->datum))) [L1261] EXPR 0 A->next VAL [A={11:0}, A->next={-2:0}, A_mutex={1:0}, B={-3:0}, B_mutex={2:0}, ip={-2:0}, p={-2:0}, sp={-2:0}, t1={13:0}] [L1261] 0 p = A->next VAL [A={11:0}, A->next={-2:0}, A_mutex={1:0}, B={-3:0}, B_mutex={2:0}, ip={-2:0}, p={-2:0}, sp={-2:0}, t1={13:0}] [L1229] 1 p -> datum = x VAL [\old(x)=5, \old(x)=7, A={11:0}, A_mutex={1:0}, B={-3:0}, B_mutex={2:0}, p={-4:0}, p={-3:0}, p={-4:0}, p={-3:0}, x=5, x=7] [L1230] 1 p -> next = ((void *)0) VAL [\old(x)=7, \old(x)=5, A={11:0}, A_mutex={1:0}, B={-3:0}, B_mutex={2:0}, p={-3:0}, p={-4:0}, p={-3:0}, p={-4:0}, x=5, x=7] [L1238] RET 1 init(p,7) [L1240] EXPR 1 A->next [L1240] 1 t = A->next [L1241] EXPR 1 A->next [L1241] 1 A->next = sp VAL [A={11:0}, A->next = sp=48, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}, p={-4:0}, sp={32:40}, t={-2:0}] [L1261] 0 p = A->next VAL [A={11:0}, A->next={-2:0}, A_mutex={1:0}, B={-3:0}, B_mutex={2:0}, ip={-2:0}, p={-2:0}, sp={-2:0}, t1={13:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: p -> next = ((void *)0) [1230] * C: p -> next = ((void *)0) [1230] * C: p -> datum = x [1229] * C: A = malloc(sizeof(struct s)) [1252] * C: A->next = p [1254] * C: p -> datum = x [1229] * C: A->next = p [1254] * C: A->next = p [1254] * C: p -> next = ((void *)0) [1230] * C: B = malloc(sizeof(struct s)) [1255] * C: p -> next = ((void *)0) [1230] * C: p -> datum = x [1229] * C: A->next = p [1254] * C: p -> datum = x [1229] * C: A->next = sp [1241] and C: p = A->next [1261] - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1252]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1253]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1254]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1254]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1255]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1256]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1261]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1262]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1257]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1242]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 318 locations, 30 error locations. Started 1 CEGAR loops. OverallTime: 578.3s, OverallIterations: 50, TraceHistogramMax: 1, PathProgramHistogramMax: 21, EmptinessCheckTime: 0.1s, AutomataDifference: 125.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 406.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8089 SdHoareTripleChecker+Valid, 112.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8089 mSDsluCounter, 4942 SdHoareTripleChecker+Invalid, 106.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3392 mSDsCounter, 2820 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43165 IncrementalHoareTripleChecker+Invalid, 45985 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2820 mSolverCounterUnsat, 1550 mSDtfsCounter, 43165 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 975 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 882 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3486 ImplicationChecksByTransitivity, 17.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1045occurred in iteration=13, InterpolantAutomatonStates: 790, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 49 MinimizatonAttempts, 25098 StatesRemovedByMinimization, 46 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 42.2s InterpolantComputationTime, 979 NumberOfCodeBlocks, 979 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 900 ConstructedInterpolants, 0 QuantifiedInterpolants, 20552 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 49 InterpolantComputations, 49 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-19 08:35:04,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0eb5f9-ccca-4a5c-866a-f3202aa60c80/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE